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Finding the Fourth Proportional to 22,181.76, 30,610.62 and 12,110.11

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Solution

The fourth proportional to 22,181.76, 30,610.62 and 12,110.11 is: 16,711.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.76 : 30,610.62 = 12,110.11 : x
  2. Step 2: Convert to fraction form
    22,181.76/30,610.62 = 12,110.11/x
  3. Step 3: Cross multiply
    22,181.76x = 30,610.62 × 12,110.11
  4. Step 4: Simplify right side
    22,181.76x = 370,697,975.37
  5. Step 5: Solve for x
    x = 370,697,975.37/22,181.76
  6. Step 6: Final answer
    x = 16,711.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.